docs: def check_signatures(pkg_list, allowed_keys):
      """
      Go through list of packages with signatures and check if all are properly signed
  
      :param pkg_list: list of packages in format '%{name} %{SIGPGP:pgpsig}'
      :param allowed_keys: list of allowed keys
      :return: bool
      """
      all_passed = True
      for line_str in pkg_list:
          all_passed &= process_rpm_ql_line(line_str.strip(), allowed_keys)
  
      if not all_passed:
          raise PackageSignatureException(
              'Error while checking rpm signatures, see logs for more info')